A coordination polymer of CdCl2 with the novel zwitterionic dicarboxylate ligand 2,2 '-(2-methylbenzimidazolium-1,3-diyl)diacetate (pda)

作者：Gui, Liu Cheng; Li, Fa Si; Cen, Zhong Min; Wang, Xiu Jian^*; Li, Bin

来源：Acta Crystallographica Section C-Structural Chemistry, 2008, 64: M378-M380.

DOI：10.1107/S0108270108032861

The title compound, poly[chlorido[mu(4)-2,2'-(2-methylbenzimidazolium-1,3-diyl) diacetato] cadmium(II)], [Cd(C12H11N2O4)Cl](n), is an undulating two-dimensional polymer consisting of a paddlewheel Cd-2(CO2)(4) cluster which lies on an inversion centre. These paddlewheel clusters act as four-connected square building units interlinked via bridging zwitterionic dicarboxylate ligands into a corrugated layer which is consolidated by pi-pi interactions between benzene rings of benzimidazole groups. Neighbouring layers are further assembled via interlayer pi-pi interactions into a three-dimensional supramolecular structure. The key feature of this study is the synthesis of a paddlewheel-based polymer constructed with a novel multifunctional zwitterionic dicarboxylate ligand.

• 出版日期2008-11
• 单位广西师范大学; 广西大学